I have put together a TTN node using the M5Stack prototyping platform and a custom PCB with a RFM95 module. M5Stack has a LoRa module already but only the 433 flavour. Specs:
- RFM95 module
- SD card slot
- Battery powered
- 320x240 full color screen
- Compact form factor (almost “production” feeling)
- Low power (pending measurements, deep sleeping the M5Stack Core has some quirks)
It’s just a first iteration but it works great and the M5Stack looks awesome. Sample code, PCB files and a couple of enclosure options are available in a public repo.
Feedback is very welcome. I’d also like to hear what possible use cases do you think this might have.